demo/style-attrs.html

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<meta charset="utf-8">
<title>Dagre D3 Demo: Style Attributes</title>

<link rel="stylesheet" href="demo.css">
<script src="http://d3js.org/d3.v3.min.js" charset="utf-8"></script>
<script src="../build/dagre-d3.js"></script>

<h1>Dagre D3 Demo: Style Attributes</h1>

<style id="css">
text {
  font-weight: 300;
  font-family: "Helvetica Neue", Helvetica, Arial, sans-serf;
  font-size: 14px;
}

.node rect {
  stroke: #333;
}

.edgePath path {
  stroke: #333;
  fill: none;
}
</style>

<svg id="svg" width=960 height=600></svg>

<section>
<p>An example showing how styles that are set in the input graph can be applied
to nodes, node labels, edges, and edge labels in the rendered graph.
</section>

<script id="js">
// Create the input graph
var g = new dagreD3.Digraph();

// Fill node 'A' with the color green
g.addNode('A', { label: 'A', style: 'fill: #afa;' });

// Make the label for node 'B' bold
g.addNode('B', { label: 'B', labelStyle: 'font-weight: bold;'});

// Double the size of the font for node 'C'
g.addNode('C', { label: 'C', labelStyle: 'font-size: 2em;' });

// Make the edge from 'A' to 'B' red and thick
g.addEdge(null, 'A', 'B', { style: 'stroke: #f66; stroke-width: 3px;' });

// Make the label for the edge from 'C' to 'B' italic and underlined
g.addEdge(null, 'C', 'B', {
    label: 'A to C',
      style: 'stroke-width: 1.5px',
        labelStyle: 'font-style: italic; text-decoration: underline;'
});

// Create the renderer
var renderer = new dagreD3.Renderer();

// Disable pan / zoom for this demo
renderer.zoom(false);

// Set up an SVG group so that we can translate the final graph.
var svg = d3.select('svg'),
    svgGroup = svg.append('g');

// Run the renderer. This is what draws the final graph.
var layout = renderer.run(g, svgGroup);

// Center the graph
var xCenterOffset = (svg.attr('width') - layout.graph().width) / 2;
svgGroup.attr('transform', 'translate(' + xCenterOffset + ', 20)');
svg.attr('height', layout.graph().height + 40);
</script>

<script src="demo.js"></script>